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Timken 397-3 tapered roller bearing cone – image 1

Timken 397-3 tapered roller bearing cone – image 2

Timken 397-3 tapered roller bearing cone – image 3

Timken 397-3 tapered roller bearing cone – image 4

Timken 397-3 tapered roller bearing cone – image 5

Timken 397-3 tapered roller bearing cone – image 6

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Timken397-3Tapered Roller Bearing Cone – 2.3622″ Bore, 0.8660″ Width, 98,900 N Dynamic Rating, Class 3 Precision

Name: Timken 397-3 Tapered Roller Bearing Cone – 2.3622″ Bore, 0.8660″ Width, 98,900 N Dynamic Rating, Class 3 Precision
Brand: Timken
SKU: AP5B3#XBLTNJ
Price: 66.53 USD
Availability: InStock

Condition: New – Open box

Condition Note: Made In USA, New Old Stock, Class 3 Precision

Availability:

4 in stock

Categories: Bearings, Tapered Roller Bearing Cone

Class 3 precision inch taper cone, 0.8660 in width, 98,900 N dynamic and 125,000 N static rating, K factor 1.45. Mates Timken cup 393 or 393A.

List Price

$66.53

4 in stock

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Specifications

Key Specifications

MFR / Brand	Timken
MPN	397-3
Model	397 #3
Bearing Type	Tapered Roller Bearing Cone
ID	2.3622 in

Technical Specifications

Series	395
Base Number	397
Overall Width	0.8660 in
Mpn Variants	397-3, 397 *3, 397#3, 397 #3, 3973
Compatible With Replaces	Mating cups: Timken 393, 393A
Precision Class	Class 3
Dynamic Load Rating	98,900 N
Static Load Rating	125,000 N
Rolling Elements	Tapered Roller
Item Weight	1.97 kg (4.33 lb)
Number Of Rows	1
Bore Type	Straight
Design Units	Imperial
Cone Part Number	397
Cone Width	0.8660 in
Cone Backface To Clear Radius	0.03 in
Cone Frontface Backing Diameter	2.68 in
Cage Cone Frontface Clearance	0.11 in
Cage Cone Backface Clearance	0.05 in
Effective Center Location	-0.03 in

Cross-References

Cross Reference 1	SKF 397 - standard class, not Class 3
Cross Reference 2	FAG K-397 - standard class, not Class 3
Cross Reference 3	NSK 397 - standard class, not Class 3
Cross Reference 4	NTN 4T-397 - standard class, not Class 3
Cross Reference 5	Koyo 397 - standard class, not Class 3
Cross Reference 6	Fersa 397 - standard class, not Class 3
Cross Reference 7	BCA/Bower 397 - standard class, not Class 3
Cross Reference 8	PEER 397 - standard class, not Class 3

Seller Part Number: AP5B3#XBLTNJ

Product Description

What this part is:

Timken 397, an inch-series single tapered roller bearing cone — inner ring, tapered rollers and cage as one assembly. Bore Diameter: 2.3622 in (60 mm). Overall Width: 0.8660 in (21.996 mm). Item Weight: 1.97 kg (4.33 lb). Dynamic Load Rating: 98,900 N. Static Load Rating: 125,000 N. Rolling Elements: Tapered Roller. Number Of Rows: 1. Bore Type: Straight. Precision Class: Class 3. Unit Quantity: 1 Pc.

Decoding the designation:

397 — the cone number in Timken’s inch tapered roller range. Base Number: 397.

*3 — Precision Class: Class 3. A tighter running tolerance than standard, giving lower running vibration and closer shaft location. The same marking appears as 397-3, 397 *3 and 397#3.

What these specs mean in practice:

K Factor: 1.45. The K factor fixes the ratio of radial to thrust capacity, and at 1.45 this raceway angle carries heavy thrust alongside its radial load. Dynamic Axial Rating (Ca90): 17,600 N. Dynamic Radial Rating at 90 million revolutions (C90): 25,600 N. G1 Factor: 56. G2 Factor: 21.4. Geometry Factor (Cg): 0.0984, the constant Timken uses in its lubrication life adjustment factor.

Mounting data:

Effective Center Location: –0.03 in (–0.8 mm), measured inside the cone back face. Maximum Shaft Fillet Radius: 0.03 in — the largest shaft corner radius the cone back face clears. Shaft Backing Shoulder Diameter, Frontface (da): 2.68 in. Shaft Backing Shoulder Diameter, Backface (db): 2.72 in. Cage Location relative to back face (Aa): 0.05 in. Cage Location relative to front face (Ab): 0.11 in.

Quantity and configuration:

Unit Quantity: 1 Pc. Cone only — inner ring, roller set and cage. The matching cups are the Timken 393 and 393A.

Interchange guidance:

397 is the industry designation for this cone and is carried by SKF, FAG as K-397, NSK, NTN as 4T-397, Koyo, Fersa, BCA/Bower and PEER. Those are the standard-class numbers, while this cone is Timken Class 3 (*3), so ask for the matching class.